Water heater



C. A. OLSON.

WATER HEATER. APPLICATION FILED NOV. I6, 1918. RENEWED JULY 8.1922.

Jfiys,

Patented Oct. 3

, mvzu-ron 4 .7 J {A K CHilRLES A. OLSON, F GENEVA, ILLINOLS, ASSIGNGR, BY

HIE-N5] ASSIGNMENTS, T0

GENEVA HEATER COMPANY, 01? GENEVA, ILLINOIS, A tJOREOBATIUNOF ILLINOIS.

ATER Application filed November 16, 1918, Serial No. 262,894. Renewed July 8, 192d.

To (all whom it 'nmg/ concem Be it known. that l, CHAnLns A. OLsoN, a citizen of the United States, residing at Geneva, in the county o'l Kane and State of 5 Illinois, have invented certain new and useul Improvements in Vl ater Heaters, of which the following is a lull, clear, and exact specu'ication, taken in con unction with the accompanying drawings, forming a part ed to presenta maximum amountoit heating 5 surface to the jets, and in a predetermined zone ot maximum temperature; and a coil wherein the velocity of the fluid passing therethrough is greatly increased thereby, rendering the heater practically instantane- 0 ous in el'iaracter and preventing the deposit 1 ii and advantages as are incident lo my inventhan i attain by means of a construction illustrated in preferred term in the accompa uy i n dra wi nus, wherei n-- i ie'urc l is a vertical. sectional view o i? an no apparatus embodying: my invention;

Figure .2 is a similar view of a m0diiication thereof;

Figure 3 represents a top plan view oi. the m liiication illustrated in Figure 2;

c Figure 4 is an. enlarged view illustrating Serial N0. 573,632.

in detail the preferred relation of the elongated coil with reference to the jet; and

Figures 5 and 6 are enlarged views suggesting modified terms of the coil as are considered within the scope of the invention.

Referring to the drawings, a suitable casing for the heater is denoted at 7, and within this casing is centrally mounted a burner 8 which is provided with a gas intake 9 positioned. over and in alignment with the customary mixer 1.0. This mixer is connected to a source of supply. Spirally surrounding the upper wall oi the burner, and spaced a predetermined distance away from it, is a coil 11, elliptical in cross-section, whose inlet end ll. is connected with a source oil? water supply, the outlet 11 leading to the custom ary water distributiu outlets.

The burner 8 has its upper wall 13 El1)8l' lured to provide the flame jets or outlets 12 which are arranged spirally to correspond with the spiral contour of the coil, so that the flame will impinge upon the flattened inner or heating surface 14: of the coil, the plane of elongation of which being at rightangles to the axes of the jets The coil is desirably positioned so that the heating surface id, as a matter of predetermined dis tance and uniform location from the outlets 12, has its central portion arranged in what would normally be the apices of the combustion zones of the series oi flame jets. [is so located, however, in each case the apex, as such, disappears and the zone of maximum temperature spreads out about and along the coil for some distance, as indicated some what in Figure 4t of the drawings. This improveinent makes for extremely high elliciency, and one important factor in this respect resides in so arranging the jets as to Follow the contour of the coil in the manner set F rth. Furthermore, the superin'iposed overhanging; relation of the flattened coil is such that each jet outlet is protected by the section of coil erheloued above it from water or other cmidensation which might drip ilirom the casing top into the outlet and tend to clog it. This will readily he seen from an inspection of l ig'ures l and Q. l

The elongated or flattened coil in addition to presenting an ideal surface for the impinging; flame, provides a narrow or th nned iiuid channel. through which a ribbon-lik t eam of water may flow while in contact with the heating surface, In other Words, the arrangement provides for the contact of a minimum quantity of fluid against a maximum amount ofheating surface which is itself placed in a Zone of maxin'ium. temperature. Furthermore the relocity of flow is so materially quickened that the amount of heat transmitted. through the heating surface is increased and to a degree Where deposit of scale or sediment in the coil is prevented.

lVhat l claim is:

1. In, a Water heater. the combination with a Water pipe having a flat surface, of a burner arranged to direct a flame against said surface at right angles thereto said burner and pipe being so spaced from each other as to cause the hottest gases of said flame to radiate in all directions from the center of the flame and in contact With said flat surface Which extends in all directions from the point of impingement of the flame thereon.

2. In a Water heater the combination with a Water pipe having a flat surface, of a burner arranged to direct a flame against said surface substantially at the center thereof and at right angles thereto, said burner and pipe being so spaced from each other as to cause the hottest of said flame to radiate in all directions from the center of the flame and in contact with said flat surface.

3. In a Water heater, the combination with a Water pipe having a flat surface, of a burner arranged. to direct a flame against said surface at right angles thereto. said flat surface extending in all. directions from the point of flame impingement thereon, said burner and pipe being so spaced from each other as to cause the hottest gases of said flame to radiate in all. directions from the center of the flame and in contact with said flat surface, said burner being of such flame producing capacity and said pipe being so proportioned to the volume of flame produced that said hottest gases lap both edges of said pipe in addition. to said flat surface.

4. ln :1 water heater. the combination with a coil, of flattened water pipe. of a series of burners for heating the same, each of said burners being arranged to direct a flame at right angles to and on substantially the medial line of one of the flattened surfaces of said pipe said. burners being each so spaced from the pipe as to cause the hottest gases of the flame produced to radiate in all directions from the center of the flame and in contact 'Witl'i said flat surface of the pipe.

5. 1n a Water heater. the combinationwith a coil of flattened Water pipe, of a series of burners for heating the same, each of said burners being arranged to direct a flame at right angles to and on suhstmitiall the medial line of one of the flattened surfaces of said pipe. said burners being each so spaced from the pipe as to cause the hottest g: a of the flame produced to radiate in all directions from the center of the flame and in contact With said flat surface of the pipe, the volume of flame produced by each of said burners being so related to the size of the said pipe that said hottest gases also lap both edges of said pipe contiguous to said flat surface.

CHARLES A. OLSON. 

